db.r5.8xlargevsdb.r6i.8xlarge
db.r5.8xlarge and db.r6i.8xlarge cost the same on demand in US East (N. Virginia), $4.00 per hour.
| At a glance | db.r5.8xlarge | db.r6i.8xlarge |
|---|---|---|
| On-demand | $4.00/hr | $4.00/hr |
| Lowest rate | $2.31/hr0% less1-yr reserved, no upfront | $2.31/hr1-yr reserved, no upfront |
| Size | 32 vCPUs, 256 GiB | 32 vCPUs, 256 GiB |
| Processor | Intel Xeon Platinum 8175 | Intel Xeon Scalable Ice Lake |
| Architecture | x86_64 | x86_64 |
Prices in US East (N. Virginia)
“Off” is the discount against each type’s own on-demand price. PostgreSQL, USD per hour.
| Option | db.r5.8xlarge | db.r6i.8xlarge | db.r6i.8xlarge vs db.r5.8xlarge |
|---|---|---|---|
| On-demandPay by the hour | $4.00 | $4.00 | Same |
| 1-yr reservedNo upfront | 42% off$2.31 | 42% off$2.31 | Same |
Key differences
The biggest lead each one has.
Where db.r5.8xlarge leads
No clear lead on the measures we compare.
Where db.r6i.8xlarge leads
EBS baseline bandwidth10,000 Mbps vs 6,800 Mbps
47% higherNetwork baseline12.5 Gbps vs 10 Gbps
25% higherSustained clock3.5 GHz vs 3.1 GHz
13% higherSpecs
14 of 24 specs differ. Those are in bold.
| Compute3 of 9 differ | db.r5.8xlarge | db.r6i.8xlarge |
|---|---|---|
| vCPUs | 32 | 32 |
| Physical cores | 16 | 16 |
| Threads per core | 2 | 2 |
| Architecture | x86_64 | x86_64 |
| Processor | Intel Xeon Platinum 8175 | Intel Xeon Scalable Ice Lake |
| CPU maker | Intel | Intel |
| Clock speed | Up to 3.1 GHz | – |
| Sustained clock | 3.1 GHz | 3.5 GHz |
| Burstable | No | No |
| MemoryAll 1 match | db.r5.8xlarge | db.r6i.8xlarge |
|---|---|---|
| Memory (GiB) | 256 | 256 |
| Networking3 of 3 differ | db.r5.8xlarge | db.r6i.8xlarge |
|---|---|---|
| Network | 10 Gigabit | 12.5 Gbps |
| Network baseline | 10 Gbps | 12.5 Gbps |
| Network peak | 10 Gbps | 12.5 Gbps |
| Storage6 of 7 differ | db.r5.8xlarge | db.r6i.8xlarge |
|---|---|---|
| Storage | EBS Only | EBS Only |
| EBS baseline bandwidth | 6,800 Mbps | 10,000 Mbps |
| EBS max bandwidth | 6,800 Mbps | 10,000 Mbps |
| EBS baseline throughput | 850 MB/s | 1,250 MB/s |
| EBS max throughput | 850 MB/s | 1,250 MB/s |
| EBS baseline IOPS | 30,000 | 40,000 |
| EBS max IOPS | 30,000 | 40,000 |
| Instance details1 of 3 differ | db.r5.8xlarge | db.r6i.8xlarge |
|---|---|---|
| Family | r5 | r6i |
| Category | Memory optimized | Memory optimized |
| Current generation | Yes | Yes |
| Other1 of 1 differ | db.r5.8xlarge | db.r6i.8xlarge |
|---|---|---|
| Hardware Basis | r5.8xlarge | r6i.8xlarge |
On-demand prices by region
Cheapest for db.r5.8xlarge first. PostgreSQL, USD per hour.
| Region | db.r5.8xlarge | db.r6i.8xlarge | Difference |
|---|---|---|---|
| US East (N. Virginia)Used in summaryus-east-1 | $4.00 | $4.00 | Same |
| US East (Ohio)us-east-2 | $4.00 | $4.00 | Same |
| US West (Oregon)us-west-2 | $4.00 | $4.00 | Same |
| EU (Stockholm)eu-north-1 | $4.114 | $4.112 | Same |
| Canada (Central)ca-central-1 | $4.324 | $4.325 | Same |
| EU (Ireland)eu-west-1 | $4.48 | $4.48 | Same |
| Europe (Spain)eu-south-2 | $4.48 | $6.656 | ▲ 49% |
| US West (N. California)us-west-1 | $4.48 | $4.48 | Same |
| Asia Pacific (Hyderabad)ap-south-2 | $4.56 | $6.864 | ▲ 51% |
| Asia Pacific (Mumbai)ap-south-1 | $4.56 | $4.56 | Same |
| Israel (Tel Aviv)il-central-1 | $4.70 | $4.70 | Same |
| EU (London)eu-west-2 | $4.704 | $4.704 | Same |
| EU (Milan)eu-south-1 | $4.704 | $4.704 | Same |
| EU (Paris)eu-west-3 | $4.704 | $4.704 | Same |
| Asia Pacific (Jakarta)ap-southeast-3 | $4.80 | $7.28 | ▲ 52% |
| Asia Pacific (Melbourne)ap-southeast-4 | $4.80 | $7.28 | ▲ 52% |
| Asia Pacific (Osaka)ap-northeast-3 | $4.80 | $4.80 | Same |
| Asia Pacific (Seoul)ap-northeast-2 | $4.80 | $4.80 | Same |
| Asia Pacific (Singapore)ap-southeast-1 | $4.80 | $4.80 | Same |
| Asia Pacific (Sydney)ap-southeast-2 | $4.80 | $4.80 | Same |
| Asia Pacific (Tokyo)ap-northeast-1 | $4.80 | $4.80 | Same |
| AWS GovCloud (US-East)us-gov-east-1 | $4.82 | $5.60 | ▲ 16% |
| AWS GovCloud (US-West)us-gov-west-1 | $4.82 | $5.60 | ▲ 16% |
| EU (Frankfurt)eu-central-1 | $4.88 | $4.88 | Same |
| Middle East (Bahrain)me-south-1 | $4.928 | $4.928 | Same |
| Middle East (UAE)me-central-1 | $4.928 | $7.322 | ▲ 49% |
| Canada West (Calgary)ca-west-1 | $5.12 | $4.325 | ▼ 16% |
| Asia Pacific (Hong Kong)ap-east-1 | $5.28 | $5.28 | Same |
| Africa (Cape Town)af-south-1 | $5.331 | $5.328 | Same |
| Europe (Zurich)eu-central-2 | $5.376 | $8.008 | ▲ 49% |
| South America (Sao Paulo)sa-east-1 | $8.376 | $8.384 | Same |
Keep exploring
Each type’s own page, and how it compares with others.
AWS RDS PostgreSQL prices in USD. Monthly figures use 730 hours. Prices last updated 12 Nov 2026.